Ike doesn't hesitate. He's not really a hesitate kind of guy. He jumps in just as soon as her head disappears under the water.

She'd said it's not dangerous, but the thing does look pretty strong, and if it's trying to drown someone, that's dangerous enough for Ike. He's not really going to try to kill it, but Ike is absolutely the kind of guy who will throw down and underwater wrestle a kraken to save a stranger.